相关实验视频

Updated: Jun 27, 2025

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Published on: November 11, 2013

一个表面修改的Na₃V₂(PO₄)₂F₃阴极,具有高速率能力和循环稳定性,用于离子电池

Jiexin Zhang¹, Congrui Zhang¹, Yu Han¹

¹State Key Laboratory of Advanced Power Transmission Technology (State Grid Smart Grid Research Institute Co. Ltd) Beijing 102209 China dyadin@sina.com.

|April 29, 2024

概括

研究人员开发了一种碳涂层的酸复合物 (C-NVPF) 用于离子电池. 这种高性能阴极材料提供了出色的容量,循环寿命和速度性能,以实现商业可行性.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
储能储能储能储能储能储能

背景情况:

商业上可行的离子电池 (SIB) 需要具有高电压,速率能力和循环稳定的先进阴极材料.
现有的阴极材料往往在满足这些要求高的性能标准方面面临限制,以实现广泛的SIB采用.

研究的目的:

为了合成和表征一种新型的碳涂层化 (Na₃V₂) 复合物 (C-NVPF) 用于SIB应用.
评估C-NVPF材料作为高性能离子电池的阴极的电化学性能.

主要方法:

简单的球磨技术用于合成碳涂层Na₃V₂(PO₄) ₂F₃ (C-NVPF) 复合材料.
电化学表征包括容量测量,循环寿命测试和在各种电流密度下的速率性能评估.

主要成果:

该C-NVPF材料在0.1C时显示出110.6mAhg-1的高可逆容量.
观察到优异的长期循环稳定性,在2000个循环5C后保持54%的容量.
复合材料表现出了出色的速率性能,在30C的高速率下达到35.1mA hg-1的速度.

结论:

碳涂层显著增强了Na₃V₂的电化学特性.
作为先进的离子电池的高性能阴极,C-NVPF材料非常有前途,满足商业化关键要求.

更多相关视频

Construction and Testing of Coin Cells of Lithium Ion Batteries

Construction and Testing of Coin Cells of Lithium Ion Batteries

Published on: August 2, 2012

Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering

Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering

Published on: April 17, 2018

相关概念视频

Batteries and Fuel Cells

Batteries and Fuel Cells

A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...